For the past 2 hours I tried to solve the No Subnet declaratio for enp0s8 (192.168.1.1)
My /etc/dhcp/dhcpd.conf looks like this
authoritative; default-lease-time 86400; max-lease-time 86400000; option broadcast-address 192.168.1.255; option subnet-mask 255.255.255.0; option router 192.168.1.1; option domain-name-servers 192.168.1.1; option domain-name "xxx.xxx.xx" subnet 192.168.1.0 netmask 255.255.255.0 { range 192.168.1.11 192.168.0.254; } host vmpsateam01-01{ hardware ethernet 08:00:27:82:cd:38 fixed-address 192.168.0.1; } The is set to listen on enp0s8 in /etc/default/isc-dhcp-server:
INTERFACESv4="enp0s8" The static IP address of the network interface is in the subnet:
enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::a00:27ff:fe82:cd38 prefixlen 64 scopeid 0x20<link> ether 08:00:27:82:cd:38 Also in etc/network/interfaces I configured the router to have a static IP
auto enp0s8 iface enp0s8 inet static address 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.1 gateway 192.168.1.1 Still, when restarting ics-dhcp-server I receive a No subnet declaration for enp0s8 (192.168.1.1) although 192.168.1.1/24 is in the subnet defined in dhcpd.conf. Thanks for any advice!
(I know there are many question like this, but none of them helped so far)
1 Answer
Sorry for necrobumping, but I experienced the same for my isc-dhcp-server setup.
I changed the pool start- and end addresses and after restarting the isc-dhcp-service, the same subnet error as OP described appeared after the systemctl status isc-dhcp-server cmd.
My conclusion is that restarting the isc-dhcp-server.service after implementing changes in its configuration, will not advertise the changes to other network components entirely. So restarting the (virtual) machine should be preferred to apply the changes effectively.
